87975954 has 72 divisors (see below), whose sum is σ = 216443136. Its totient is φ = 25779600.

The previous prime is 87975941. The next prime is 87975959. The reversal of 87975954 is 45957978.

Its product of digits (3175200) is a multiple of the sum of its prime divisors (1350).

It is a self number, because there is not a number n which added to its sum of digits gives 87975954.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87975959) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 66867 + ... + 68169.

Almost surely, 2^87975954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87975954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108221568).

87975954 is an abundant number, since it is smaller than the sum of its proper divisors (128467182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87975954 is a wasteful number, since it uses less digits than its factorization.

87975954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364 (or 1350 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The square root of 87975954 is about 9379.5497759754. The cubic root of 87975954 is about 444.7555009192.

The spelling of 87975954 in words is "eighty-seven million, nine hundred seventy-five thousand, nine hundred fifty-four".